Hi there. This is about the least informative post you'll read in a while.

Basically, I'm looking for a piece of software that I used to use back in the good old XP days. It had a 'native' looking (professional, serious, in contrast to the plastic ULTRA BOOST apps out there) interface and a great collection of various registry tweaks you could apply. It wasn't one of those 'boost your speed' programs, but rather a toolbox so to speak.

If any of you masters know the name of that program, or of any suitable alternatives, please advise.

I wouldn't use a tweaking program with Windows 7/8. There's no need and they tend to do more harm than good.

No, not that one. And I agree with you to some extent, but I'm not looking to change things radically, but there are things like 'open command prompt' here and dozens of similar things that I find useful. I remember that app had all of these "under the same roof". (Yes, I could Google all the reg edits myself, but it'd be nicer with a fancy interface to do it for me! )